Considering about almost all weather conditions, rain or shine, wet, dry or dirt, we decide to use the material and the most accurate process to make this screw. Durable and rustproof, it can be used in rear, front, mechanical or hydraulic brakes. Suitable for E-bikes, hybrid, MTB, touring, road, BMX, all kinds of new and old bikes. Features -Color: Red.-Material: Titanium steel.-Size: 1x0.5x0.5cm/0.4x0.2x0.2inch.-Wide compatibility: disc brake bolts fit for most front and rear disc brakes bicycles, and other 6-bolt brake rotors.- Strong material: Titanium steel material protects rotor screws from rust in all environmental conditions and guarantees powerful rotation strength.- High strength, perfect corrosion-resistance, durable life, and effective resist against both high and low temperature- Easy Installation: Extremely simple installation even for novices.- Suitable for E-bikes, hybrid, MTB, touring, road, BMX, all kinds of new and old bikes.Pcking list: 12 x Bike Screw Z